Spraying device



n Nov.` 2l, 1933.

P. L. WlLBUR l SPRAYING DEVICE 4 Sheets-Sheet l P. l.. wlLBUR 1,935,689

Nav. 2l, 1933.

SPRAYING DEVICE Filed May 12,'1932 4 sheets-sheet 2 wven [or B 75 v W] l @19W zfarngy NOV- 21, 1933 P. L. wlLBuR 1,935,689

SPRAYING DEVICE Filed May 12, 1932 4 Sheets-Sheet 5 INVENTOR.

Y Pete/L Wilbur .77M M" ATTORNEY.

N0 21, 1933 P. L. WILBUR 1,935,689

SPRAYING DEVICE Filed May l2, 1932 4 Sheets-Sheet 4 L INVENTOR.

1.-" Pe terl'.. Wilbur ATTORNEY.

Patented Nov. 21, 1933 AUNITED STATES SPRAYING DEVICE Peter L. Wilbur, Tuckahoe, N. Y., assigner to Wil-X-MFG Corporation, a corporation o New York Application May 12, 1932. Serial No. 610,750 1'w7l Claims. (Cl.` 299-96) This invention relates to .a spraying device which may be used as a fire extinguisher or a sprayer for insecticides in which a stream of liquid is ejected from a container or reservoir by 5 pressure created by a pumping mechanism.

It is a primary object of the invention to provide a device of this character wherein the pumping mechanism is adjustably mounted upon the exterior and in communication with the interior of the container, which pumping mechanism in the liquid discharge or operative position thereof is adapted to extend laterally of the container, and in the inoperative position thereof to be folded to lie in contiguous relation to the container to form a compact structure readily stored and transported.

It is a further object of Vthe invention to provide a spraying device of this character wherein the connection of theV pumping mechanism,

with the container is through the mounting on the container, and which connection is adapted to control the opening of the pumping mechanism to the container in all the positions of the y pumping mechanism.

It is another object of the invention to provide a spraying device of this character wherein the pumping mechanism is arranged to inject andY create an air pressure within the vcontainer to exert an expelling force upon the liquid, the container being arranged vwith discharge outlet means. adapted to be open to 'the vatmosphere when the pump is extended laterally of the container and closed when the pump is contiguous to the container. Y

Other objects and advantages Will hereinafter appear. 1

Y In the embodiments of the invention illustrated in the drawings there is provided a pumping mechanism of the reciprocatory piston type to create an air pressure in a liquid container or reservoir as the expelling force for the liquid, the container having a check valve controlled air inlet into and a liquid discharge outlet from the container through pump mounting means fixed upon the exterior oi the container, the pumping mechanism .being fixed to av supporting or carrying member having a passage or bore therethrough in communication withan air outlet port from the pump cylinder. A nozzle carried by the pump is in communication with another passage or bore through the pump supporting member, and by means of whichl supportingmember the pump mechanism is pivotally mounted upon the` pump mounting bracket on .the container. The air passage through the pump supporting member is in communication with the valve controlled air inlet to the container in all positions of the pump. The pump dischargenozzle passage through. the pump supporting member is automatically and positively placed in communishown in the operative position in dotted lines;

Fig. 2 is a top view ofthe device with a portion of the handle broken away;

Fig. 3 is a fragmentary elevational View of the upper portion of the device;

Fig. 4 is a view partly in section taken on the.

line 4--4 of Fig. 2 looking in the direction of the arrow;

Fig. 5 is a View partly in section taken on the line 5 5 of Fig. 2 looking in the direction of the arrow; Y

Fig. 6 is a detail view of the pump mountin bracket in horizontal section;

Fig. '7 is a perspective view of the pump supporting member;

Fig. 8 is a perspective view of a valve, and-the supporting and actuating means therefor shown inFig. 5;

Fig. 9 is a longitudinal sectional view of the pumping mechanism;

Fig. 10 isa view looking at the bottom of the pump mechanism shown in Fig. 9;

Fig. 11 is a View in elevation of4 another embodimentvof the invention, with an element of the pump mounting means removed;

Fig. 12 is a plan view ofthe device shown in Fig. 11;

Fig. 13 is an elevational .View of the device with a partial section taken on line 13-13 of Fig. 12;

Fig. `14: is a longitudinal section on line 14-14- of Fig. 12;

Fig. 15 is a horizontal section through the handle on line 15-15 of Fig. 13; and

Fig. 16 isV a partial vertical section through the lower part of the handle.

The embodiment of the invention shown in Figs. l `to vl() comprises a reservoir or container to carry the liquid to be discharged, and in the use of the device as a fire extinguisher preferably comprising carbon tetrachloride. The body 11 of said container is substantially of semi-circu- Vlar form in cross section with the wall opposite 60 40 to the cylinder-apt the rear of the piston and `fixed at opposite ends.

to the container, the head 13 is arranged with a bracket in the form of a lug 16 extending integrally therefrom at one side of the recess 12 and having a bore extended transversely therethrough restricted intermediate the ends, as at 17, forming a perforated wall to divide the bore into recesses or compartments 18, 19. The recess 16 is arranged with a port 20 drilled through the lug and head to form an air inlet into the container above the surface of the liquid therein. The liquid in the container may pass to the recess 19 through a discharge pipe 21 carried in a perforation in the top head 13, as at 22, having the inlet thereto adjacent the bottom head 14 and the outlet end projecting above the head 13 and opening into a tubular chamber 23 arranged in the lug 16 adjacent and in communication with the lug recess 19, as shown in Fig. 6.

The pump,`Fig. 9, is of the single acting type, comprising a cylinder 24 having heads 25, 26, The head 26 has a'n air outlet passage 27, the inlet of which is arranged centrally of the head and communicating with a bore portion 28 extending transversely of the head into a laterally extending part of the head, the bore being formed by drilling laterally into said extended part and closing the outer end by a plug 29. The outlet of the passage is through the inner surface of said head extension, as at 30. A rod 31 is slidably mounted in the head 25 and has a hand grip 32 fixed to the outer end. A piston 33 of less diameter than thek cylinder is slidably mounted upon a tubular portion 34 at the inner end of the rod, to have movementV between an abutment 35 fixed to the rod, and an abutment 36 'in the form of a cap threaded to and closing the outer end of the tubular portion of the rod. A perforated disk 37 of flexible material is engaged upon the mounting portion of the piston, and is clamped to a shoulder formed at the inner end of said portion by engaging a channel-shaped ring 38 onV the piston' having an ,annular recess and secured on the piston in disk` clamping position by upsetting laterally the outer orlower end portion of thepiston over the ring, the disk 37 being of a diameter to extend about the piston, and having a portion thereof yieldingly urged into ycontact with the cylinder wall by a split resilient ring 39 engaged in the recess of ring 38. The tubular portionof the rod has a port/40 adjacent the abutment 35 and a port 41 adjacent the abutment 36. The pump head 25 is arranged with ports 42 to permit the entrance of air into the cylinder at therear of the piston, and as the piston .rod is moved out-` i ward toward the head 25 there will be a slight free movement of the piston on the rod due to the frictional contact of the packing disk 37 with the cylinder wall until the piston head engages the abutment 36, thereby opening the port the forward port 41 to the cylinder in front of the piston through a transverse recess 41 in the flanged end of the piston. The cylinder at 'the 4l', in the piston end. As the piston rod ismoved inwardly the piston will close they port 40, and thereby (eject Ythe air in front of the piston through the passage 27' in the cylinder head 62.

In the innermost position of the pump piston the outlet 27 is shut o from the pump cylinder by a valve 43 having a stern 44 whereby it is slidably mounted in a perforation in the cap abutment 36 with the free end of the stem flanged to limit the movement of the valve outward from the piston. The face of the valve'is arranged with packing material 45 to engage and seal the outlet to the outlet passage 27 which is arranged with a seat 46 to assure positive sealing of the outlet. The valve 43 is urged outward from the lpiston into engagement with the seat 46 by a coiled spring 47 mounted in the tubular portion of therod with the ends abutting the end of the rod, and the flanged end of the Valve stem 44. The piston is releasably secured in its innermost position with the outlet passage 27 closed by providing the pump cylinder head 25 with a reduced extended portion having ears 48 projecting diametrically opposite from the free end of said portion, and the end of the hand grip 32 has a recess 49 in said end with a pin 50 extended transversely of a peripheral portion of the recess. To secure the piston rod in its innermost position it is adjusted so that the pin 50 will extend at one side of the ears 48. The rod is then moved inwardly, seating the valve 43 against the seat 46 when the rod is rotated to engage the pin 50 below an ear 48, as shown in Fig. 9. The pump is pivotally mounted and connected to the container lug 16 to adjust the pump to extend contiguous and longitudinally of the container within the container recess 12,'and also transversely and laterally of the container. The pump supporting member has a pump engaging portion 51 of arcuate shape in cross section for engagement and securing of the pump cylinder adjacent the handle end thereof by soldering or other suitable means. A rectangular body portion 52A extends laterally Vfrom the pump engaging portion 51, and is arranged with a stud portion 52' extending laterally therefrom and adapted to be engaged in the bore of the lug 16 with 115 an intermediate annular reduced portion 53 rotatablyengaging and supported in the restricted portion .of the bore separating wall 17 and retained therein by nuts 54 threaded onto the free end of the stud projecting through'the lug recess 18 and beyond the lug 16.

To connect the pump cylinder with the container in all positions of the pump relative to the container, the studV is arranged with a vbore 55 extending axially into and through the threaded 125 end and into the body portion 52, as shown in Figs. 4 and 7, and having a portion 56 extending longitudinally through the body 52 at a right angle to the portionv 55, the portion 56 being connected at the entrance end thereto with one end of a pipe 57 extended along the pump cylinder and connected at the opposite end to the outlet 30 of theoutlet passage 27 in the cylinder head 26, whereby upon the reciprocation of the pump piston, air is expelled from the pump cylinder through the pipe 57, bore 56, 55.

To connect the outlet of bore 55 to the container air inlet port 20 and deliver the expelled air to the container to create pressure therein,

the lug recess 18 is closed by a cap 58 threaded into said recess with a washer 59 interposed between the cap and'annular edge of the recess,'the nuts 54 being of such size relative to the diameter of the'recess to form with the cap 58 a compartment C with which the outlet of the stud bore 55 and port 20 communicate as shown in Fig. 4. To store and prevent the escape of air from the container during the outward movement of the pump piston, a valve 60 is slidably mounted in a recess 61 'in the cap 58 adjacent to and in line 15@ 1,935,689 with the free vend of the stud 52 of the pump support, and arranged with a facing of packing material 62. The valve is yieldingly urged against a seat at the outlet of the stud bore 55 by a coiled spring 63 seated in the recess 61. To prevent the leakage of air during the expelling of air from the pump into the container the mounting of the stud in the perforated wall 17 is sealed by a sleeve of packing material 64 arranged about a tapered portion 65 of the stud extending from the mounting portion 53 thereof (Fig. 7). The packing element is seated against the perforated wall 17, and is maintained in such position by a cup member 66. The c up member is threaded onto the stud before the threading of the nuts 54 thereon, and has its interior wall surfaces extending at substantially the angle of inclination of the tapered portion 65. The valve 60 also serves to shut off the container from the pump and its mounting when the device is not in use, to prevent evaporation of the liquid in the container, and also to prevent access of the vapors or fumes of the liquid from coming in contact with the pumping mechanism and causing consequent corrosion to render the same inoperative.

It will readily be seen that air may be delivered into the container through the pump mounting connection with the container in any adjusted position of the pump and the pump piston actuated to create and store pressure in the container to expel the liquid from the container through the discharge pipe 21. To prevent evaporation of the liquid through the discharge pipe 21 it is n ormally closed by a valve 67 having a face of packing material 68 to engage and seal the end of the pipe 21 extending into the chamber 23. The valve is yieldingly urged against the outlet of pipe 21 by a coiled spring 72 mounted in a recess in a-cap 73 threaded into the tubular portion forming the chamber 23 in the lug 16, as shown in Fig. 5, with a washer of packing material interposed between the cap and lug to prevent the leakage of liquid from the chamber. The free end of the spring is engaged about a reduced end 74 of the valve stem.

recess 19 byl a pipe 76 extending parallel withv the air connecting pipe 57. Thel pipe 76 is connected Vat vone end to the nozzle at the inner surface of the head extension and at the other -end with the entrance to a bore 77 drilled into the body 52v of the pumpsupport parallel with the bore 56.Y The bore 77 is in communication with a bore 78 extending at a right angle tothe bore 77 and parallel with the stud bore 55, and opens to the lug recess 19. To arrange the lug recess 19 as a compartment-and to-prevent leakage of the liquid therefrom the stud of the pump supporting member is arranged adjacent the mounting portion 53 with an annular enlargement 79 having the peripheral surface tapered toward'thefree end of the stud. The walls of the recess 19 are correspondingly tapered, and has a layer of packing material 80 linterposed between the recess walls and the peripheral surface of the stud enlargement 79 with oneendvabutting a shoulder 81 formed by the stud enlargement 79 andthe body 52 of the supporting member, as shown in Fig. 7. Y

To assurethe closing of the discharge pipe 21 in the inoperative position of the pump and the opening of the said pipe to the nozzle in the,

operative position of the pump means are provided to positively actuate the valve. For this purpose a recess 69 is arranged in the stem of the valve 67 for the loose engagement of the rounded end of an arm 70 extending from a ring member 71 loosely'rmounted on the mounting portion 53 of the stud 52 within the lug recess 19, as Vshown in Fig. 4. The ring member 7l is of such size relative to the space between the end of the stud enlargement 79, the separating wall 17 and the conical wall of recess 19 as to form a space between the ring member, s tud enlargement 79 and wall of the recess 19 to permit of free movement of the ring member and the flow of liquid from thechamber 23 and the recess 19 into the bore 78, as. shown in Figs. 4 and 5. The valve 67 is of smaller diameter than the diameter of the chamber 23 to compensate for the angular vertical movement thereof, due to the mounting of the ring member 71 and also to permit the flow of liquid around the sides of the Valve into the recess 19 when the valve is unseated. The wall connecting the compartment and recess adjacent the pipe 2,1 is cut away, as at 82 in Fig. 5, to assure such passage of liquid in the open position of the valve. When the pump is adjusted to extend laterally of the container, the valve actuator 7l will be positively actuated to move Athe valve to open position. When the pump is adjusted to lie contiguous to the containenthe v alve will be positively closed to render the device inoperative and prevent accidental discharge or leakage and evaporation of the liquid during the storing of the device. This is errected by actuating the ring member 71 into predetermined positions throughv the movement of the pump by recessing a peripheral section or the ring member 71 opposite the armd70, as at 83 in Fig. 8, for the slidable engagement of a pin 84 xed in and ex-V tending laterally from the stud enlargement 79 to abut the opposlte ends of recess 83 during the movement of the pump. In the full line position of the pump and valve carrier, as illustrated in Fig. 5, the pin is in engagement with the upper end wall of the recess 83, with the valve actuating arm 70 extending in a downward direction toward the outlet of pipe 21 in which position the valve is seated against the pipe outlet to close the same. During the movement of the pump into the lateral extending position thereof, as is shown in dotted lines in Fig. 5, the pin will travel along the recess toengage the lower end wall thereof, which engagement will voccur when the pump is in its intermediate position, as shown in dotted lines. During the remaining portion of the movement of the "pump to its lateral extending position the ring member is rotated about the pump support- Ving stud in synchronism with the movement of the pump, thereby actuating the arm 70 in an upward direction, lifting the valve against the action of the spring 72 to permit the liquid to enter the chamber 23 from vpipe 21.

ric' To maintain the pump in the operative posid tion andv to facilitate directing the stream of liquid and the actuation of the pump, means are provided comprising a cam member 85 arranged The liquid ,i

will be induced to flow by the air pressure in the on and extendingv from the pump supporting 15u member between the body portion-52 and stud section 79 in juxtaposed relation to the bracket lug 16. The cam has an arcuate lateral face 86 extending from thehighest point in the cam edge, and in the inoperative position of the pump will extend substantially parallel with the top head 13 of the container, as shown in full lines in Fig. 1. As the pump is moved to the laterally extending or operative position, the cam member is rotated simultaneously therewith, the cam face 86 traveling in a downward direction, with the high part of the cam frictionally sliding over a pin 87 fixed in and projecting from the pump mounting lug 16 adjacent and parallel with the container head 13.

In the full lateral extending position of the pump with the valve 67 actuated to open position, the cam at the edge 86 will abut an ear 88 with the high portion of the cam edge engaging the pin 87. The cam will be positioned between the pin and abutment, thereby securing the pump in operative position and limiting its movement. The securing connection may be broken vby a slight downward pressure exerted on the nozzle end of the pump.

It will be seen that in the inoperative position of the pump with the pump piston in its innermost locked position the pump is sealed from the contents of the container 11 by the valve 43 seated against the air outlet seat 46 so that neither the fumes nor the liquid itself can enter the cylinder of the pump and corrode theV working parts thereof.

Figs. 11, 12, 13, 14.-, 15 and 16, illustrate another embodiment of the invention. Like the embodiment previously described, it includes a container 100 for liquid, and an air pump 101 pivotally mounted on ther top. A liquid discharge nozzle 102 is also pivotally mounted on top of the container preferably integrally with-the pump. The nozzle communicates with the interior of the container as does also the air outlet of the pump so that the pressure in the container may be built up to discharge the liquid from the nozzle.V

As in the previous embodiment the top of the container has a ller opening and closure cap 104 to permit replenishing the liquid when the contents have been used. The means for pivotally mounting the pump in this instance comprises a pair of spaced members 105 and 106 mounted on top of the container which serve as trunnion supports for the pump carrying member 107. This member has a plurality of ports 108 and 109, one communicating with the air outlet of the 1 pump and the other with the nozzle, the ports in turn each communicating with the interior of the container through a different one of the trunnion mounting members.

The pump is carried by a collar 110 in the free end of the pump carrying member, and is fastened therein by sweating or soldering the two mem-Y bers together. The end of the pump remote from the pump handle has a closing head 111 which carries the nozzle and.l also has a ducttherethrough, not shown, which serves as an air outlet from the pressure chamber of the pump. A tubular member 112 is mounted on the pump between the pump carrying member 107 and the pump head 111 connecting the air outlet of the pump with the air duct 108 in the pump carrylng member, and forming part ofthe connection between the air outlet' of thepump and the air inlet to the container. A similar tubular member 113 is mounted on the pump, parallelv and the pump carrying member. This member connects the nozzle with the liquid duct 109, and forms part of the connection between the nozzle and the liquid outlet from the container.

' The pump, itself, is in every respect similar to that in the embodiment of the invention previously discussed with the exception perhaps of the means for holding the pump handle in its innermost position when the apparatus is not in use.

In this instance the head 114 closing the pump cylinder has a. short cylindrical extension terminating in lips 115 projecting from opposite sides of the said extension. A slot 116 is cut in the pump handle, in that portion which is adjacent the cylinderhead when the pump is in its innermost position, the slot being of a width slightly greater than the diameter of the head extension and of a depth substantially equal to the length of the extension. The at sides of the slot are milled out at the base to provide bayonet slots 117, and in order to secure the pump piston in its innermost position, the slot in the handle is aligned with the lip extensions on the cylinder head.

The pump handle is forced inwardly, and turned through an angle of approximately 90, until the lip extensions 115 engage in the bayonet slots associated with the handle. The spring in the pump outlet closing valve exerts sufficient pressure to maintain the lip extension in the bayonet slots by frictional contact until released by the operator.

The two mounting members 105 and 106 on the top of the container which pivotally support the pump, terminate in cup-shaped recesses, threaded internally to receive respectively the closure caps 118 and 119, likewise having recesses which together with those in the mounting members form chambers 105 and 106. The chamber 105 forms part of the connection between the air outlet of the pump and the air inlet to the container, while the chamber 106 forms part of the connection between the liquid outlet from the container and the nozzle.

The caps forming the closure members for the respective chambers have reduced portions 123 threaded externally to engage the threads in the pump mounting members 105 and 106. An annular groove in the body of each of the caps at the base of the reduced portions receives a gasket 121 which is forced tightly against an annular protrusion 122 in the outer face of the mounting member with which it is associated to form an air or water tight joint depending on whether the joint is for the chamber in the air connection or the liquid connection. The mounting members 105 and 106 have extensions 124 and 125 projecting within the container, through which pass respectively the air inlet to the container and the liquid outlet from the container.

is similarly constructed and has a port 129, constituting the liquid outlet opening from the container. The port opensv at its upper end into the compartment 106' which forms part of the message liquid connection between the containerv and the nozzle. The port 129 opens at its lower end into an enlarged recess 130 in the extension 125, which likewise has a bushing 131 threaded into the recess; The bushing 131 forming partVV of the liquid connection hasaV tube 13.2 fastened thereto extending tothe bottom of the container where it opens into the liquid. When the air-'inlet to the container and the liquid outlet fromk the container are opened and the pressure above the liquid increased, the liquid will be forced up through the tube 132 through the liquid ccnnection to the discharge nozzle, and as the tube 132 extends to the bottom of the container, ail of the liquid therein may be utilized.

When the pump is in the inoperative position, extending longitudinally of the container, the air inlet and the liquid outlet are closed, andl when the pump is in the operative position extending laterally of the container, the air inlet and liquid outlet are opened. The opening and closing of the air inlet and liquid Youtlet are accomplished by the valves 133 and 134 associated respectively therewith. As these are similar in all respects, it' will be necessary only to describe one in detail. v

Referring to the valve 133 associated with the air inlet; it'con'sists of' a body portion 135 having a gasket 135 inits upper face adapted to seat on an annular protrusion 137 at the upper end of the recess Y127 in the downward extension of the pump mounting means. The body of the valve opposite the face is reducedin cross-section, the reduced portion being encircled by a spring 138 positionedY between lthe shoulder 139 provided by the reduced Yportion and an annular seat 140 in the bushing 128 adjacent the opening to the container. The spring is of 'substantial strength, and is suflicient to close` the valve against normalpressures applied -by the pump. Consequently, positive means must be provided to seat and unseat the valve to accomplish the opening and closing of Vthe air inlet. For this purpose a stem 141 is provided threaded into the Vvalve body 135,"1and-projecting up through the air inlet port into the" compartment 105 in the pump mounting fmember. The stem may be made square or triangular in cross section to permit the air to flow freely between the walls of the inlet port and the stem, itself. i

When the stem 141 -is depressed by suitable means, hereafter described, as the pump is moved to the operative position, the valve is urnseatedagainst the action of the spring 138 associated therewith to provide a through the compartment 105 to the container.

The valve 134 in the liquidioutletvi's similar to the valve associated with the air inlet, its stein`V 141 projecting through the liquid outlet port' 129 into the chamber 106' in the pump mounting member which forms part' of the Vliquid connection. The valve in the liquid outlet is operated similarly to the one in theV air inlet, that is, it is maintained closed when the pump is in-the in-ry operative position by the spring associated therewith, and is opened against'the action of the spring when the pump is swung to the operative position.

The manner in which the pump is mounted on the container, and the means for automatically causing the valves to function as the pump is swung from one position to another will now be described.

The inner end of the pump carrying member 107 terminates in a hub portion 'extending at passage from 'tion by'nuts 155 and right angles to the main portion and also at right angles to the lair and liquid rducts which extend therethrough. This hub portion extends between the inner faces of the pump mounting members 105 and 106 on the container (Fig. 14),

and has enlargedrecesses 143 and 144 in the opposite ends internally threaded to receive studs 145 and 146 which project through apertures in the inner faces of the pump mounting means. 'I'hese studs are rotatable with respect to the pump mounting means on the container, and constitute trunnicns whereby the pump may be swung relatively to the container. Thek air and liquid ducts 158 and 109 in the pump carrying member communicate respectively with the recesses 143 and 144 in the opposite ends of the hub portion, the recesses in turn communicating with the chambers in the pump mounting means. The communication between the recess 144 and the chamber associated with the liquid outlet from the container is through a port 148 in the stud 146 projecting into the chamber. A connection is thus provided from the nozzle to the liquid outlet from the containerin all positions of the pump, and when the pump is in the operative position the opening of the valve in the liquid outlet permits emptying the container through the discharge nozzle.

The duct in the pump carrying member associated with the air outlet of the pump likewise communicates with the air inlet to the container through a similar port 147 in the stud 145 which projects into the chamber associated with the air inlet. In order that air pressure may be built up in the container, however, a check valve is placed in the air line and a convenient position for this valve has been found to be at the end'of the stud 145 projecting into the air inlet compartment.

This valve comprises a body portion 149 having a stein 150 projecting into the port in the stud member. In order to render the valve air tight, a washer`151 is provided encircling the valve stem and the valve is normally urged against a valve seat constituted by the end of the stud member by a spring 152 resting in a recess in the closing cap 118. The check valve operates in the usual way, that is, on the pressure Vand the valve in the liquid outlet from the container, as the pump is swung from one position to another, are `cams 153 and 154 mounted on the studs projecting into the chambers associated respectively' with these valves. The cam elements have a b ody portion encircling the studs Vand may-haveV internal teeth cooperating with similar teeth on the outer surface of the stud so that the cam elements will rotate integrally with the stud members. The cams are held in posi- 156 screwed on the threaded outer ends `of the 'studs 145 and 146 respectively.'

The bo-dy or collar portion of the cam elements, i project into a recess 157 in the inner face of the chambers in the pump mounting means, and in this recess encircling the studs are packing` elements 158 for rendering the trunnion joints, respectively, air and liquid tight. The cam 153 in the chamber associated with the air inlet to the container is in alignment with the stem 141 of the valve therein, while Vthe cam 154 in the chamber associated with the liquid outlet from the container is likewise aligned with the stem 141 `of the valve closing the liquid outlet.r These cams are so positioned on the studs, that when the pump is in the inoperative position, extending longitudinally of the container, the low porf tions of the cams are adjacent the valve stems, and the valves closed. As the pump is rotated to the operative position, wherein it extends laterally of the container, the high portions of the cams arrive adjacent the valve stems and the rise of the cams is such that the valves associated therewith are automatically opened. The relation of the Valve stems 141 and 141 and the cams 153 and 154 when the pump is in the inoperative position is shown in Fig. 14, while the corresponding relation of the cams and valve stems for ther operative positionof the pump is shown in Fig. 1l.

In mountingthe deviceupon a support where it will be convenient for service, a suitable bracket (not shown) may be used which will hold the pump in its inoperative position.

In the embodiment of the invention justV described, the container is cylindrical in shape, but if a semi-circular container is used such as that shown in the previouslydescribed embodiment, a torsion spring 159 may be employed to lift the pump out of the container recess when the apparatus Yis removed from its supporting bracket so that it may be readily grasped. This spring may take the form of a resilient wire clip having its two free ends resting on the top of the container and joined together by portions eX- tending around the hub parts of the pump carrying member and under the main portion thereof as shown in Figs. 12 and 13.

' Although it is thought that the operation of the device is obvious from the foregoing del scription a brief recapitulation may be desirable.

When the pump is in the inoperative position as shown in Fig. 13 the valve in theair inlet and liquid outlet will be seated by the springs associated therewith since in this position of the pump the low portions of the valve operating cams are adjacent the valve stems. When the pump is swung to the operative position, the cams rotate with the pump trunnions and function automatically to open the air inlet and the liquid outlet valve in which position they are maintained as long as the pump is in operation. In this position of the pump, an operative connection is established between the air outlet of the pump through the air tube 112 parallel with the pump, the air duct through the pump carrying member 107, the

i port through the stud extending into the chamber 105 associated with the air inlet valve, the check valve in the port, the chamber itself, and

to the container through the air-inlet valve housing.

A similar connection is established-from the nozzle mounted on the pump, the liquid tube likewise carried by the pump, the duct through thel pump carrying member, the port through the stud extending into the chamber associated withv the liquid outlet, the chamber itself, the liquid outlet valve housing, and the tube extending to the tofore set forth. As the nozzle is integral with the pump, a convenient means is provided for directingl the liquid stream as the pump is being operated y vSince certain changes may be made in the above construction and `different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative, and not in a limiting sense. The invention, therefore, is to be limited only by the prior art andthe scope of the appended claims.

Having described the invention what is claimed,

l. In `a spraying device, a closed liquid carrying container, aliquid discharge nozzle, means for mounting an air pump pivotally on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in one position thereof, and laterally of the container in another position thereof, said mounting means comprising a supporting member mounted on the container and another member mounted on the pump and together forming a chamber in all positions of the pump, an air inlet to the container, a liquid outlet therefrom, means for connecting the pump and the air inlet, means including said chamber for connecting the liquid outlet and the discharge nozzle, means in said connection for controlling the flow of liquid therethrough, and means in said chamber operating said control means to permit the passing of liquid through said connection when the pump is in one position and to prevent the passing of liquid therethrough when the pump is in another position;

2. In a spraying device, a closed liquid carrying container, means for pivotally mounting a liquid discharge nozzle and an air pump on said container so as to permit'the pump to extend longitudinally of and in contiguous relation to the container in one position thereof, and laterally of the container in another position, said mounting means comprising a supporting member mounted on the container and another member Ymounted on the pump and together forming a chamber'in all positions of the pump, an air inlet to the container, a liquid outlet therefrom, means for connecting the pump and the air inlet, means including said'chamber for connecting the liquid outlet and the discharge nozzle, means in o said connection for controlling the ow of liquid therethrough, and means in said chamber operating said control means to permit the passing of vliquid through said connection when the pump is in one position and to prevent the passing of liquid therethrough when the pump is in another position.

3. Inaispraying device, a closed liquid carrying container; a liquid discharge nozzle, means for mounting an` air pump pivotally on said container so as to permit lthe pump to extend longitudinally of and Vin contiguous relation to the container inone position thereof, and laterally of the container in another position thereof, said mounting means comprising a supporting member mounted on the container and another member lmounted on the pump and together forming a chamber in all positions of the pump, an air inlet tothe container, a liquid outlet therefrom, means for connecting the air inlet and the pump, means including said chamber for connecting the liquid outlet and the discharge nozzle, means in said Yat tion.

4. In a spraying device, a closed liquid carrying container, a liquid discharge nozzle, means for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in the inoperative position thereof, and laterally of the container in the operative position thereof, said mounting means comprising supporting means mounted on the container and other means mounted on the pump and together forming a chamber in all positions of said pump, an air inlet to the container, a liquid outlet therefrom, means for connecting the air inlet with the pump, means including said chamberV for Yconnecting the liquid outlet and the discharge nozzle, liquid control means in said liquid connection, and means in said chamber for auto*- matically opening said control means to permit the passing of liquid therethrough when the pump is swung to operative position and for automatically closing said control means to prevent the passing of liquid through the connection when the pump is swung to its inoperative position.

5. In a spraying device, a closed liquid carrying container, a liquid discharge nozzle, means for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in one position thereof, and laterally of the container in another position thereof, said mountingv means comprising supporting means mounted on the container and other means mounted on the pump and together forming a pair of separate chambers in all positions of said pump, an air inlet to the container, a liquid outlet from the container, means including one of said chambers for connecting the air inlet and the pump, means including the other of said chambers for connecting the liquid outlet and the discharge nozzle, means in the air connection for controlling the passing of air therethrough, means in the liquid connection for controlling the passing of liquid therethrough, and means in said chambers automatically operating `said control means and functioning to open the same when the pump is swung to one position and to close said control means when the pump is swung to another position. 6. In a spraying device, a closed liquid carrying container, a liquid discharge nozzle, means for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in one position thereof, and laterally of the container in another position thereof, said mounting means comprising supporting means mounted on the container and other means ,mounted on the pump and together forming a chamber in all positions of said pump, an air inlet to the container, a liquid outlet from the container, means for connecting the air inlet and the pump, means including said chamber for connecting the liquid outlet and the nozzle,'a valve in the liquid connection, andmeans including a cam housed in the chamber and operated by the pump for opening the valve when the pump is swung to one position, and for closing the valve when the pump is swung to another position.

7. In a spraying device, a closed'liquid carrying, container, a liquid discharge nozzle, means for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in one position thereof,.and laterally of the container in another position thereof, said mounting means comprising supporting means mounted on the container andother means mounted on the pump and together forming a chamber in all positions of said pump, an air inlet to the container, a liquid outlet from the container, means for connecting the liquid outlet and the nozzle, means including said chamber for connectingthe air inlet and the pump, a valve in said air connection, and means including a cam housed in said chamber and operated by the pump for opening the valve when the pump is swung to one position and for closing the valve when the pump is swung to another position.

8. Ina spraying device, a closed liquid carrying container, a liquid discharge nozzle, means for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in one position thereof, and laterally of the container in another position thereof, said mounting means comprising supporting means mounted on the container and other means mounted on the pump and together forming a pair of separate chambers in all positions of said pump, an air inlet to the container, a liquid outlet from the container, means including one of said chambers for connecting the airA inlet and the pump, means including the other of said chambers for connecting the liquid outlet and the discharge nozzle, valves in both said connections, and means including a cam positioned in each of said chambers .and operated by `the pump for opening saidvalves when the pump is swung to one position and for closing said valves when the pump' is swung to another position.

9. In a spraying device, a closed liquid carrying container, means for mounting a liquid discharge nozzle and `for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the kcontainer in the inoperative position thereof, and laterally of the container' in the operative position thereof, an air inlet to the container, a liquid outlet from the container, means forming a continuous air conduit between the pump and the air inlet in all positions of the pump, means forming a continuous liquid conduit between the liquid outlet and the nozzle in all positions of the pump, a Valve associated with the means forming the liquid conduit and normally closing said conduit, and means operated by the pump for positively opening said valve when the pump is in operative position.

10. In a spraying device, a closed liquid carrying container, means for mounting a liquid discharge nozzle` and for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in con- Gli tiguous relation to the container inthe inoperative position thereof, and laterally of the container in the operative position thereof, an air inlet to the container, a liquid outlet from the container, means forming a continuous air conduit between the pump and the air inlet in all positions of the pump, means forming a con'- tinuous liquid conduit between the liquid outlet and the nozzle in all positions ofl the pump, a valve associated with the means forming the air conduit and normally closing said conduit, and means operated by the pump for positively opening said valve when the pump is in operative position. J

1l. In a spraying device, a closed liquid carrying container, means for mounting a liquid discharge nozzle and for pivotally mountingan air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in the inoperative position thereof, and laterally of the container in the operative position thereof,A an air inlet to the container, a liquid outlet from the container, means forming a continuous air conduit between the pump and the air inlet in all positions of the pump, means forming a continuous liquid conduit between the liquid outlet and the nozzle in all positions of the pump, a valve associated with the means forming the liquid conduit, another valve associated with the means forming the air conduit, said valves normally closing their respective conduits, and means for positively opening said valves when the vpump is in operative position.

12. In a spraying device, a liquidcarrying container, Va liquid discharge nozzle, means for pivotally mounting a pump on said'container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in the inoperative positionthereof and laterally of the container in the operative position thereof, said mounting means comprising means mounted on the container and other means mounted on the pump and together forming a chamber in all positions of said pump, an air inlet to the container, a liquid discharge outlet from Vthe container, means for connecting the air inlet to the container with the pump, means including said chamber for connecting the liquid discharge outlet with the nozzle and means including an element housed in said chamber and operated by the pump for opening the liquid connection when the pump is in the operative position and closing and the connection when the pump is in the inoperative position, said liquid discharge nozzle being carried by the pump. Y

13. In a spraying device, a liquid carrying container, a liquid discharge'nozzle, means for pivotally mounting a pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in the inoperative position thereof and laterally of the container in the operative position thereof, said mounting means comprising means mounted on thevcontainer and'other means mounted on the pump and together forming a chamber in all positions cf'said pump, an inlet to the container,

a liquid` discharge outlet from the container,

operated by the pump for opening the air conneotion to permit air to be discharged into the Il? container when the pump is in the operative position and for closing the connection when the pump is in the inoperative position, said liquid discharge lnozzle being carried by the pump.

14. In a spraying device, a liquid carrying container, a liquid discharge nozzle, means for pivotally mounting a pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container in the irl-- operative position thereof and laterally of the container in theoperative position thereof, said mounting means comprising means mounted on the container and other means mounted on the pump andtogether forming a pair of separate the pump forl opening both of said connections when the pump is in the operative position and for closing saidV connections when the pump is in the inoperative position, said liquid discharge nozzle being carried by the pump.

15. -A liquid spraying device comprising a closed container, a discharge nozzle therefor, trunnions for pivotally mounting an air pump on said container so as to permit the pump to extend longitudinally of and in contiguous relation to the container inthe inoperative position of the pump, and laterally of vthe container in theoperative position of the pump, an air inlet and a liquid discharge outlet for said container, each having a passageway communicating therewith leading through ports in said trunnions and connecting respectively with the pump and the discharge nozzle, a chamber formed inthe trunnion mounting and included in the liquid discharge passageway, a valve in said liquid discharge passageway, and means in said chamber operated by the pump for opening said valve when the pump is moved to operative position.

16. A liquid spraying device comprising a closed container, a discharge nozzle therefor, trunnions for pivotally mounting an air pump on said-container soras to permit the pump to extend lon- L gitudinally of and in contiguous relation to the container in the inoperative position of the pump, and laterally of the container in the operative -position of the pump, an air inlet and a liquid discharge outlet for said container, each having a passageway communicating therewith leading through ports in said trunnions and connecting respectively with the pump and the discharge nozzle, a chamber formed in the trunnion mounting and included in the air passageway, a valve in said air'passageway, and means in said chamber operated by the pump or opening said valve when the pump is moved to operative position.

17. A liquid sprayingdevice comprising a closed container, a discharge nozzle therefor, trunnions for pivotally mounting anair pump onV said container so-as to permit the pump to extend longitudinally of and in contiguous relation to the container in the inoperative position of the pump,

and laterally of the container in the operative position of the pump, an air inlet and liquid discharge outlet for said container, each having a passageway communicating therewith leading through ports in said trunnions and connecting respectively with the pump and the discharge L;

nozzle, chambers formed in said trunnion mounting, one included in the liquid discharge passageway and another in the air passageway, valves in said passageways, and means in said chambers operated by the pump for opening said valves when the pump is moved to operative position.

PETER L. WILBUR. 

